It happened just before 8 a.m. on the Bucks County side of the bridge, according to officials.
Chopper 6 was over the bridge as one of the cars was being towed away after catching fire.
Chopper 6 over apparent car fire on Burlington-Bristol Bridge
The bridge crosses the Delaware River, connecting Burlington, New Jersey to Bristol Township, Pennsylvania.
Officals say no one was injured.
The bridge reopened as of 10:15 a.m. on Tuesday.
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